JPS5722826A - One-body formation for double sink - Google Patents

One-body formation for double sink

Info

Publication number
JPS5722826A
JPS5722826A JP9809980A JP9809980A JPS5722826A JP S5722826 A JPS5722826 A JP S5722826A JP 9809980 A JP9809980 A JP 9809980A JP 9809980 A JP9809980 A JP 9809980A JP S5722826 A JPS5722826 A JP S5722826A
Authority
JP
Japan
Prior art keywords
blank
die
punches
punch
hydraulic pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9809980A
Other languages
Japanese (ja)
Other versions
JPS5941811B2 (en
Inventor
Jiyousuke Kawachi
Yoshihito Sakai
Tomoyoshi Muto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP55098099A priority Critical patent/JPS5941811B2/en
Publication of JPS5722826A publication Critical patent/JPS5722826A/en
Publication of JPS5941811B2 publication Critical patent/JPS5941811B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Sink And Installation For Waste Water (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

PURPOSE: To deeply draw a sink by reducing a frictional resistance between a punch and a blank, by forcing a pair of punches into a die by adding a hydraulic pressure from the bottom of the punch.
CONSTITUTION: A blank 7 is mounted on a die 1 and clamped with a blank holder 6. A working oil is forced into a space between the bottom of punches 5a, 5b and the blank 7 by driving a pump 9 to add a hydraulic pressure P. Hereby, the blank 7 expands in cavities 3a, 3b of the die 1 and at the same time, the drawing of the flange part of the blank 7 clamped between the die 1 and the blank holder 6 begins. At this time, while increasing the hydraulic pressure P, the punches 5a, 5b are forced to press with a prescribed force F1 against a prescribed force F2 of blank supporting plates 11a, 11b. When the forming is advanced, the oil contained in the space between the bottom of the punch and the blank 7 is exhausted through a relief valve 13. By this method, the materials flow smoothly to the central side wall, and the sink is drawn deeply.
COPYRIGHT: (C)1982,JPO&Japio
JP55098099A 1980-07-16 1980-07-16 Double sink integral molding method Expired JPS5941811B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55098099A JPS5941811B2 (en) 1980-07-16 1980-07-16 Double sink integral molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55098099A JPS5941811B2 (en) 1980-07-16 1980-07-16 Double sink integral molding method

Publications (2)

Publication Number Publication Date
JPS5722826A true JPS5722826A (en) 1982-02-05
JPS5941811B2 JPS5941811B2 (en) 1984-10-09

Family

ID=14210883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55098099A Expired JPS5941811B2 (en) 1980-07-16 1980-07-16 Double sink integral molding method

Country Status (1)

Country Link
JP (1) JPS5941811B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141328A (en) * 1983-01-31 1984-08-14 Matsushita Electric Works Ltd Hydraulic forming method
JPS63171400U (en) * 1986-12-26 1988-11-08
KR20030051211A (en) * 2001-12-18 2003-06-25 (주) 와이 디 티 Upper Dishpan table Manufacturing Apparatus And Manufacturing Method Thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141328A (en) * 1983-01-31 1984-08-14 Matsushita Electric Works Ltd Hydraulic forming method
JPH0332406B2 (en) * 1983-01-31 1991-05-13 Matsushita Electric Works Ltd
JPS63171400U (en) * 1986-12-26 1988-11-08
KR20030051211A (en) * 2001-12-18 2003-06-25 (주) 와이 디 티 Upper Dishpan table Manufacturing Apparatus And Manufacturing Method Thereof

Also Published As

Publication number Publication date
JPS5941811B2 (en) 1984-10-09

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